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Finding the Fourth Proportional to 3,670,205.45, 5,148,916.45 and 3,670,205.45

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Solution

The fourth proportional to 3,670,205.45, 5,148,916.45 and 3,670,205.45 is: 5,148,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670,205.45 : 5,148,916.45 = 3,670,205.45 : x
  2. Step 2: Convert to fraction form
    3,670,205.45/5,148,916.45 = 3,670,205.45/x
  3. Step 3: Cross multiply
    3,670,205.45x = 5,148,916.45 × 3,670,205.45
  4. Step 4: Simplify right side
    3,670,205.45x = 18,897,581,216,384.65
  5. Step 5: Solve for x
    x = 18,897,581,216,384.65/3,670,205.45
  6. Step 6: Final answer
    x = 5,148,916.45

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.